Toyota HILUX 2007 Owner's Manual page 157

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19H029
2. Remove the filter cover as shown in
the illustration.
146
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19H030
3. Pull the filter out of the filter outlet.
Inspect the filter on the surface.
If it is dirty, it should be replaced.
When inserting the filter in the filter
outlet, keep the arrow pointing up.
INFORMATION
The air filter should be installed
properly in position. The use of air
conditioning with the air filter removed
may cause deteriorated dustproof
performance and then affect air
conditioning performance.